ATI Radeon HD 2900 XT vs ATI Radeon HD 4570 Rebrand
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1024MB VRAM Radeon HD 4570 Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 2900 XT 's Advantages
Larger VRAM bandwidth (106.0GB/s vs 12.67GB/s)
200 additional rendering cores
ATI Radeon HD 4570 Rebrand 's Advantages
Released 2 years and 6 months late
More VRAM (1024GB vs 512GB)
Lower TDP (65W vs 215W)
Score
Benchmark
FP32 (float)
Radeon HD 2900 XT
+149%
0.476 TFLOPS
Radeon HD 4570 Rebrand
0.191 TFLOPS
Graphics Card
May 2007
Release Date
Nov 2009
Radeon R600
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
828 MHz
Memory Clock
396 MHz
Memory
512MB
Memory Size
1024MB
GDDR3
Memory Type
DDR2
512bit
Memory Bus
128bit
106.0GB/s
Bandwidth
12.67GB/s
Render Config
4
Compute Units
3
-
-
-
320
Shading Units
120
16
TMUs
8
16
ROPs
4
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
11.89 GPixel/s
Pixel Rate
3.184 GPixel/s
11.89 GTexel/s
Texture Rate
6.368 GTexel/s
-
-
-
475.5 GFLOPS
FP32 (float)
191.0 GFLOPS
-
-
-
Board Design
215W
TDP
65W
550 W
Suggested PSU
250 W
2x DVI
1x S-Video
Outputs
2x DVI
1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
-
Graphics Processor
R600
GPU Name
RV635
R600 XT
(215RGMDKA13FG)
GPU Variant
RV635 PRO
(215-0682008)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
80 nm
Process Size
55 nm
0.72 billion
Transistors
0.378 billion
420 mm²
Die Size
135 mm²
Graphics Features
10.0 (10_0)
DirectX
10.1 (10_1)
3.3 (full)
4.0 (partial)
OpenGL
3.3
N/A
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.0
Shader Model
4.1
