Home GPU Comparison ATI Radeon HD 4750 vs ATI Radeon HD 4870

ATI Radeon HD 4750 vs ATI Radeon HD 4870

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4750 's Advantages
Released 1 years and 3 months late
Lower TDP (100W vs 150W)
ATI Radeon HD 4870 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 51.20GB/s)
160 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 4750
0.934 TFLOPS
Radeon HD 4870 +28%
1.2 TFLOPS
VS

Graphics Card

Sep 2009
Release Date
Jun 2008
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
900 MHz

Memory

512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
51.20GB/s
Bandwidth
115.2GB/s

Render Config

8
Compute Units
10
-
-
-
640
Shading Units
800
32
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

11.68 GPixel/s
Pixel Rate
12.00 GPixel/s
23.36 GTexel/s
Texture Rate
30.00 GTexel/s
-
-
-
934.4 GFLOPS
FP32 (float)
1200 GFLOPS
186.9 GFLOPS
FP64 (double)
240.0 GFLOPS

Board Design

100W
TDP
150W
300 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
2x 6-pin

Graphics Processor

RV740
GPU Name
RV770
RV740 PRO
GPU Variant
RV770 XT (215-0669049)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
0.826 billion
Transistors
0.956 billion
137 mm²
Die Size
256 mm²

Graphics Features

10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1

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