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GPU Comparison
AMD Radeon HD 6990 vs AMD Radeon RX 7950 XT
AMD Radeon HD 6990 vs AMD Radeon RX 7950 XT
VS
AMD Radeon HD 6990
AMD Radeon RX 7950 XT
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 20GB VRAM Radeon RX 7950 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7950 XT 's Advantages
Boost Clock3000MHz
More VRAM (20GB vs 2GB)
Larger VRAM bandwidth (800.0GB/s vs 160.0GB/s)
3840 additional rendering cores
Lower TDP (300W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
2.55 TFLOPS
Radeon RX 7950 XT
+2429%
64.51 TFLOPS
Radeon HD 6990
VS
Radeon RX 7950 XT
Graphics Card
Mar 2011
Release Date
Unknown
Northern Islands
Generation
Navi III
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
2000 MHz
-
Boost Clock
3000 MHz
1250 MHz
Memory Clock
2500 MHz
Memory
2GB
Memory Size
20GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
320bit
160.0GB/s
Bandwidth
800.0GB/s
Render Config
-
SM Count
-
24
Compute Units
84
1536
Shading Units
5376
96
TMUs
336
32
ROPs
192
-
Tensor Cores
-
-
RT Cores
84
8 KB (per CU)
L1 Cache
256 KB per Array
512 KB
L2 Cache
6 MB
Theoretical Performance
26.56 GPixel/s
Pixel Rate
576.0 GPixel/s
79.68 GTexel/s
Texture Rate
1008 GTexel/s
-
FP16 (half)
129.0 TFLOPS
2.550 TFLOPS
FP32 (float)
64.51 TFLOPS
637.4 GFLOPS
FP64 (double)
2.016 TFLOPS
Graphics Processor
Antilles
GPU Name
Navi 31
Antilles XT (215-0807027)
GPU Variant
Navi 31 XT+
TeraScale 3
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
40 nm
Process Size
5 nm
2.64 billion
Transistors
57.7 billion
389 mm²
Die Size
529 mm²
Board Design
375W
TDP
300W
750 W
Suggested PSU
700 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C
2x 8-pin
Power Connectors
2x 8-pin
Graphics Features
11.2 (11_0)
DirectX
12 Ultimate (12_2)
4.4
OpenGL
4.6
1.2
OpenCL
2.2
N/A
Vulkan
1.3
-
CUDA
-
5.0
Shader Model
6.7
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