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GPU Comparison
ATI Radeon HD 4870 X2 vs NVIDIA GeForce GTX 275
ATI Radeon HD 4870 X2 vs NVIDIA GeForce GTX 275
VS
ATI Radeon HD 4870 X2
NVIDIA GeForce GTX 275
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 X2 's Advantages
More VRAM (1024GB vs 896GB)
560 additional rendering cores
NVIDIA GeForce GTX 275 's Advantages
Larger VRAM bandwidth (127.0GB/s vs 115.2GB/s)
Lower TDP (219W vs 286W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 X2
+78%
1.2 TFLOPS
GeForce GTX 275
0.674 TFLOPS
Radeon HD 4870 X2
VS
GeForce GTX 275
Graphics Card
Aug 2008
Release Date
Jan 2009
Radeon R700
Generation
GeForce 200
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
1134 MHz
Memory
1024MB
Memory Size
896MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
448bit
115.2GB/s
Bandwidth
127.0GB/s
Render Config
-
SM Count
30
10
Compute Units
-
800
Shading Units
240
40
TMUs
80
16
ROPs
28
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
224 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
17.72 GPixel/s
30.00 GTexel/s
Texture Rate
50.64 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
673.9 GFLOPS
240.0 GFLOPS
FP64 (double)
84.24 GFLOPS
Graphics Processor
R700
GPU Name
GT200B
R700 XT (215-0669045)
GPU Variant
G200-105-B3
TeraScale
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
1.4 billion
256 mm²
Die Size
470 mm²
Board Design
286W
TDP
219W
600 W
Suggested PSU
550 W
2x DVI 1x S-Video
Outputs
2x DVI
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin
Graphics Features
10.1 (10_1)
DirectX
11.1 (10_0)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.3
4.1
Shader Model
4.0
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