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GPU Comparison
AMD Radeon HD 7790 vs ATI Radeon HD 2900 XT
AMD Radeon HD 7790 vs ATI Radeon HD 2900 XT
VS
AMD Radeon HD 7790
ATI Radeon HD 2900 XT
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 512MB VRAM Radeon HD 2900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7790 's Advantages
Released 5 years and 10 months late
More VRAM (1024GB vs 512GB)
576 additional rendering cores
Lower TDP (85W vs 215W)
ATI Radeon HD 2900 XT 's Advantages
Larger VRAM bandwidth (106.0GB/s vs 96.00GB/s)
Score
Benchmark
FP32 (float)
Radeon HD 7790
+276%
1.792 TFLOPS
Radeon HD 2900 XT
0.476 TFLOPS
Radeon HD 7790
VS
Radeon HD 2900 XT
Graphics Card
Mar 2013
Release Date
May 2007
Southern Islands
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1500 MHz
Memory Clock
828 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
512bit
96.00GB/s
Bandwidth
106.0GB/s
Render Config
-
SM Count
-
14
Compute Units
4
896
Shading Units
320
56
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
256 KB
Theoretical Performance
16.00 GPixel/s
Pixel Rate
11.89 GPixel/s
56.00 GTexel/s
Texture Rate
11.89 GTexel/s
-
FP16 (half)
-
1.792 TFLOPS
FP32 (float)
475.5 GFLOPS
112.0 GFLOPS
FP64 (double)
-
Graphics Processor
Bonaire
GPU Name
R600
Bonaire XT (215-0839039)
GPU Variant
R600 XT (215RGMDKA13FG)
GCN 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
2.08 billion
Transistors
0.72 billion
160 mm²
Die Size
420 mm²
Board Design
85W
TDP
215W
250 W
Suggested PSU
550 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
12 (12_0)
DirectX
10.0 (10_0)
4.6
OpenGL
3.3 (full) 4.0 (partial)
2.0
OpenCL
N/A
1.2
Vulkan
N/A
-
CUDA
-
6.3
Shader Model
4.0
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