AMD Radeon RX 6800 XT vs AMD Radeon HD 6450M

VS
Performance
Radeon RX 6800 XT11,649% better
52,04650% of 104,598
Radeon HD 6450M
4430% of 104,598

The Radeon RX 6800 XT has 11,649% better performance than the Radeon HD 6450M for the 3DMark 11 Performance GPU benchmark.

Performance per dollar
Radeon RX 6800 XT
80.1950% of 161.45
Radeon HD 6450M
No data available

The Radeon RX 6800 XT has 50% of the performance per dollar compared to the leader for the 3DMark 11 Performance GPU benchmark: AMD Radeon RX 7600.

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Summary

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About the AMD Radeon RX 6800 XT GPU

The AMD Radeon RX 6800 XT is a desktop graphics card that launched in Q4 2020 with a MSRP of $649. It is built on the RDNA 2.0 GPU microarchitecture (codename Navi 21) and is manufactured on a 7 nm process.

Memory

The RX 6800 XT has 16 GB of GDDR6 memory, with a 2,000 MHz memory clock and a 256 bit interface. This gives it a memory bandwidth of 512 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.

Cores and Clock Speeds

The RX 6800 XT includes 4,608 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 1,825 MHz and can dynamically boost its clock speed up to 2,250 MHz. It usually operates at 2,015 MHz during typical gaming workloads. Complementing the processing units are 288 texture mapping units (TMUs) for efficient texture filtering and 128 render output units (ROPs) for pixel processing. Additionally, the GPU features 72 ray accelerators dedicated to real-time ray tracing calculations.

Compatibility & Power Consumption

The RX 6800 XT occupies 2 PCIe expansion slots. It supports HDMI 2.1, DisplayPort 1.4a, USB Type-C display connections. AMD recommends a power supply of at least 700 W to handle the GPU's thermal design power (TDP) of 300 W.

Benchmark Performance & Value

The RX 6800 XT has the 25th best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 49.76% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090. Its 52,046 score and $649 launch price (MSRP) gives it a performance per dollar of 80.19. This is the 36th best in value for the 3DMark 11 Performance GPU benchmark.

About the AMD Radeon HD 6450M GPU

The AMD Radeon HD 6450M is an end-of-life mobile graphics card that released in Q1 2011. It is built on the TeraScale 2 GPU microarchitecture (codename Seymour) and is manufactured on a 40 nm process.

Memory

The HD 6450M has 1,024 MB of DDR3 memory, with a 800 MHz memory clock and a 64 bit interface. This gives it a memory bandwidth of 12.8 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.

Cores and Clock Speeds

The HD 6450M includes 160 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 600 MHz. Complementing the processing units are 8 texture mapping units (TMUs) for efficient texture filtering and 4 render output units (ROPs) for pixel processing.

Benchmark Performance

The HD 6450M has the 525th best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 0.42% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090.

General Info

General overview of the GPU, including details like its manufacturer, release date, launch price, and current production status.

InfoRadeon RX 6800 XTRadeon HD 6450M
ManufacturerAMDAMD
ArchitectureRDNA 2.0TeraScale 2
Market SegmentDesktopMobile
Release DateQ4 2020Q1 2011
Launch Price (MSRP)$649--
Production StatusActiveEnd-of-life
ShopCheck PriceCheck Price

Gaming Performance

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Select a game to compare FPS metrics

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FPS Benchmarks

This table showcases the average frame rate (FPS) achieved both GPUs in at various resolutions. Frame rate is a crucial indicator of how smoothly the GPU can run the game. A higher FPS generally translates to a smoother gameplay experience.

  • Frames Per Second
FPS data for Crysis Remastered
Crysis Remastered
Radeon RX 6800 XTRadeon HD 6450M
Low - 720p
321 FPS
--
Medium - 1080p
248 FPS
--
High - 1080p
152 FPS
--
Ultra - 1080p
95 FPS
--
QHD - 1440p
84 FPS
--
4K UHD - 2160p
54 FPS
--
FPS Source: Notebookcheck

Compare Frames Per Second (FPS)

The average frame rate (FPS) in can be compared to similar GPUs to assess relative performance. Generally, higher FPS results in a smoother gameplay experience.

Choose Baseline GPU:Radeon RX 6800 XT orRadeon HD 6450M

Compare Cost Per Frame

The average cost per frame in can be compared to similar GPUs to assess relative value. Generally, a lower cost per frame implies better value for your money.

Choose Baseline GPU:Radeon RX 6800 XT orRadeon HD 6450M
GPUCost Per Frame
GeForce RTX 3060 Ti8.99-25%
GeForce RTX 3080 (12 GB)10.99-8%
Radeon RX 6800 XT11.93
GeForce RTX 307012.83+8%
GeForce RTX 308014.21+19%
Radeon RX 5700 XT14.25+19%
GeForce RTX 306014.49+21%
Radeon RX 6950 XT15.18+27%
Radeon RX 680019.3+62%

Benchmark Performance

#
Performance
Radeon RX 6800 XT11,649% better
52,04650% of 104,598
Radeon HD 6450M
4430% of 104,598

The Radeon RX 6800 XT has 11,649% better performance than the Radeon HD 6450M for the 3DMark 11 Performance GPU benchmark.

The Radeon RX 6800 XT is ranked 25th with a score of 52,046, and the Radeon HD 6450M is ranked 525th with a score of 443.

Performance per dollar
Radeon RX 6800 XT
80.1950% of 161.45
Radeon HD 6450M
No data available

The Radeon RX 6800 XT has 123% of the performance per dollar compared to the leader for the 3DMark 11 Performance GPU benchmark: NVIDIA GeForce RTX 4090.

Radeon RX 6800 XT's 80.19 performance per dollar ranks it 36th among the other benchmarked GPUs in our database.

Relative Performance

The average score in the benchmark test can be compared to similar GPUs to assess relative performance. Generally, powerful GPUs tend to have higher scores.

Choose Baseline GPU:Radeon RX 6800 XT or

Relative Value For Money

The average performance per dollar in the benchmark test can be compared to similar GPUs to assess relative value. A higher score implies a better value for your money.

Choose Baseline GPU:Radeon RX 6800 XT orRadeon HD 6450M

Benchmark Scores

This table showcases the average performance scores achieved by both GPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful GPUs tend to have higher scores.

  • Popular
BenchmarkRadeon RX 6800 XTRadeon HD 6450M
3DMark Time Spy Graphics
17,603
--
3DMark Time Spy Score
16,908
--
3DMark Cloud Gate Graphics
193,053
--
3DMark Fire Strike Standard Graphics
49,735
--
3DMark 11 Performance Score
38,057
(+7,413.72%)
506.5
Cinebench R15 OpenGL 64 Bit
268.1
--
PassMark G3D Mark
25,032
--
PassMark G2D Mark
1,009
--
Benchmarks Source: Notebookcheck

Technical Specs

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Graphics Processor

General information about the graphics processing unit like their architecture, manufacturing process size, and transistor count. Newer GPU architectures generally bring efficiency improvements and may introduce technologies that enhance graphical capabilities.

SpecRadeon RX 6800 XTRadeon HD 6450M
CodenameNavi 21Seymour
ArchitectureRDNA 2.0TeraScale 2
Process Size7 nm40 nm
Transistors26,800 million370 million

Memory Details

Memory specifications like their capacity, bandwidth, and clock speeds. GPU memory stores graphics data like frames, textures, and shadows which helps display rendered images. These specs are crucial for graphics-intense applications like gaming and 3D modeling.

SpecRadeon RX 6800 XTRadeon HD 6450M
Memory Size16 GB1,024 MB
Memory TypeGDDR6DDR3
Memory Bandwidth512 Gb/s12.8 Gb/s
Memory Clock2,000 MHz800 MHz
Memory Interface256 bit64 bit
L1 Cache128 KB8 KB
L2 Cache4 MB128 KB

Board Compatibility

Compatibility information like their slot size, bus interface, power consumption, and display support. These specs are useful for verifying compatibility with your motherboard, power supply, and monitor.

SpecRadeon RX 6800 XTRadeon HD 6450M
Slots2 slots--
Bus InterfacePCIe 4.0 x16PCIe 2.0 x16
Thermal Design Power (TDP)300 W--
Suggested PSU700 W--
Power Connectors2x 8-pin--
OutputsHDMI 2.1, DisplayPort 1.4a, USB Type-CDevice Dependent

Cores & Clock Speeds

Processing power information like its cores and clock speed. These specs impact how fast they can process graphics. Each type of core or component serves a specific computational purpose.

SpecRadeon RX 6800 XTRadeon HD 6450M
Stream Processors (SP)4,608160
Compute Units (CU)722
Texture Mapping Units (TMU)2888
Render Output Units (ROP)1284
Ray Accelerators72--
Core Clock Speed1,825 MHz600 MHz
Core Clock Speed (Boost)2,250 MHz--
Core Clock Speed (Game)2,015 MHz--

Theoretical Performance

Theoretical performance numbers derived from the raw specifications of the different components like core count and clock speeds. While these provide a glimpse into peak processing power, they do not represent real-world performance.

SpecRadeon RX 6800 XTRadeon HD 6450M
Pixel Fill Rate288 GPixel/s2.4 GPixel/s
Texture Fill Rate648 GTexel/s4.8 GTexel/s
FP32 Performance20.74 TFLOPS192 GFLOPS
FP64 Performance1,296 GFLOPS--

API Support

Graphics API versions supported by these graphics cards. APIs evolve over time, introducing new features and functionalities. Older GPUs may not support recent versions.

SpecRadeon RX 6800 XTRadeon HD 6450M
DirectX12 Ultimate (12_2)11.2 (11_0)
OpenCL2.11.2
OpenGL4.64.4
Shader Model6.85.0

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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.