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GPU Comparison
NVIDIA GeForce GTX 275 vs ATI Radeon HD 4870
NVIDIA GeForce GTX 275 vs ATI Radeon HD 4870
VS
NVIDIA GeForce GTX 275
ATI Radeon HD 4870
We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 275 's Advantages
Released 7 months late
More VRAM (896GB vs 512GB)
Larger VRAM bandwidth (127.0GB/s vs 115.2GB/s)
ATI Radeon HD 4870 's Advantages
560 additional rendering cores
Lower TDP (150W vs 219W)
Score
Benchmark
FP32 (float)
GeForce GTX 275
0.674 TFLOPS
Radeon HD 4870
+78%
1.2 TFLOPS
GeForce GTX 275
VS
Radeon HD 4870
Graphics Card
Jan 2009
Release Date
Jun 2008
GeForce 200
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1134 MHz
Memory Clock
900 MHz
Memory
896MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
448bit
Memory Bus
256bit
127.0GB/s
Bandwidth
115.2GB/s
Render Config
30
SM Count
-
-
Compute Units
10
240
Shading Units
800
80
TMUs
40
28
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
16 KB (per CU)
224 KB
L2 Cache
256 KB
Theoretical Performance
17.72 GPixel/s
Pixel Rate
12.00 GPixel/s
50.64 GTexel/s
Texture Rate
30.00 GTexel/s
-
FP16 (half)
-
673.9 GFLOPS
FP32 (float)
1200 GFLOPS
84.24 GFLOPS
FP64 (double)
240.0 GFLOPS
Graphics Processor
GT200B
GPU Name
RV770
G200-105-B3
GPU Variant
RV770 XT (215-0669049)
Tesla 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
1.4 billion
Transistors
0.956 billion
470 mm²
Die Size
256 mm²
Board Design
219W
TDP
150W
550 W
Suggested PSU
450 W
2x DVI
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
2x 6-pin
Graphics Features
11.1 (10_0)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
1.3
CUDA
-
4.0
Shader Model
4.1
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