Home GPU Comparison AMD Radeon HD 7970 X2 vs NVIDIA GeForce GTX 275

AMD Radeon HD 7970 X2 vs NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages
Released 3 years and 7 months late
More VRAM (3GB vs 896GB)
Larger VRAM bandwidth (264.0GB/s vs 127.0GB/s)
1808 additional rendering cores
NVIDIA GeForce GTX 275 's Advantages
Lower TDP (219W vs 500W)

Score

Benchmark

FP32 (float)
Radeon HD 7970 X2 +462%
3.789 TFLOPS
GeForce GTX 275
0.674 TFLOPS
VS

Graphics Card

Aug 2012
Release Date
Jan 2009
Southern Islands
Generation
GeForce 200
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1375 MHz
Memory Clock
1134 MHz

Memory

3GB
Memory Size
896MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
448bit
264.0GB/s
Bandwidth
127.0GB/s

Render Config

32
Compute Units
-
-
SM Count
30
2048
Shading Units
240
128
TMUs
80
32
ROPs
28
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
768 KB
L2 Cache
224 KB
-
-
-

Theoretical Performance

29.60 GPixel/s
Pixel Rate
17.72 GPixel/s
118.4 GTexel/s
Texture Rate
50.64 GTexel/s
-
-
-
3.789 TFLOPS
FP32 (float)
673.9 GFLOPS
947.2 GFLOPS
FP64 (double)
84.24 GFLOPS

Board Design

500W
TDP
219W
900 W
Suggested PSU
550 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI
3x 8-pin
Power Connectors
2x 6-pin

Graphics Processor

New Zealand
GPU Name
GT200B
-
GPU Variant
G200-105-B3
GCN 1.0
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
4.313 billion
Transistors
1.4 billion
352 mm²
Die Size
470 mm²

Graphics Features

12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.3
5.1
Shader Model
4.0

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